Description of the patch:
This update for rubygem-rack fixes the following issues:
2.0.8-150000.3.9.12.0.8-150000.3.9.12.0.8-150000.3.9.1Exploitability
AV:NAC:HPR:LUI:NScope
S:UImpact
C:HI:HA:N6.8/CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N